On an example by Poincaré and sums with Kronecker sequence

Fuente: arXiv
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Main Author: Moshchevitin, Nikolay
Format: Preprint
Published: 2023
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author Moshchevitin, Nikolay
author_facet Moshchevitin, Nikolay
contents This short and simple communication is motivated by recent papers by L. Colzani and A. Kochergin. We give a brief analysis of an example by Poincaré related to sums of the type $ \sum_{k=0}^{t-1} f(kα+{x})$ where $f$ is a continuous periodic function and $α$ is irrationaland its recent generalisations. Most of the constructions under consideration are well-known. In this note, we just wanted to bring all the results together and give a general and improved multi-dimensional formulation of a recent result by A. Kochergin, prove non-existence of a universal continuous function and discuss some of the related results in terms of Diophantine Approximation. In particular, in our opinion smoothness results involving Diophantine exponents $ω$, $\hatω$ and $\hatλ$ had never been documented before.
format Preprint
id arxiv_https___arxiv_org_abs_2310_05003
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle On an example by Poincaré and sums with Kronecker sequence
Moshchevitin, Nikolay
Number Theory
11K31, 11J13
This short and simple communication is motivated by recent papers by L. Colzani and A. Kochergin. We give a brief analysis of an example by Poincaré related to sums of the type $ \sum_{k=0}^{t-1} f(kα+{x})$ where $f$ is a continuous periodic function and $α$ is irrationaland its recent generalisations. Most of the constructions under consideration are well-known. In this note, we just wanted to bring all the results together and give a general and improved multi-dimensional formulation of a recent result by A. Kochergin, prove non-existence of a universal continuous function and discuss some of the related results in terms of Diophantine Approximation. In particular, in our opinion smoothness results involving Diophantine exponents $ω$, $\hatω$ and $\hatλ$ had never been documented before.
title On an example by Poincaré and sums with Kronecker sequence
topic Number Theory
11K31, 11J13
url https://arxiv.org/abs/2310.05003